4x^2=40x-100

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Solution for 4x^2=40x-100 equation:


Simplifying
4x2 = 40x + -100

Reorder the terms:
4x2 = -100 + 40x

Solving
4x2 = -100 + 40x

Solving for variable 'x'.

Reorder the terms:
100 + -40x + 4x2 = -100 + 40x + 100 + -40x

Reorder the terms:
100 + -40x + 4x2 = -100 + 100 + 40x + -40x

Combine like terms: -100 + 100 = 0
100 + -40x + 4x2 = 0 + 40x + -40x
100 + -40x + 4x2 = 40x + -40x

Combine like terms: 40x + -40x = 0
100 + -40x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(25 + -10x + x2) = 0

Factor a trinomial.
4((5 + -1x)(5 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {5, 5}

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